Canon BJC-55 Service Bulletin

Also see for BJC-55 Series: Service manual User manual Start here User manual Specification

Canon BJC-55 Service Bulletin Manual pdf 7 page image

COMP. SYSTEMS - 7 - PRNT-8964-5. Photo BJ Cartridge SpecificationsPhoto cartridge BC-12eBJ cartridge BC-12e: Replaceable color BJ cartridge(drop modulation adopted)Ink cartridge BCI-12Bk: Black (64 nozzles)Ink cartridge BCI-12Color: Yellow, Magenta, Cyan (24 nozzles x 3)Weight Approx. 29 g (including both ink cartridges)Print speed Approx. 0.1 ppm(A4 full address printing: reference value)Nozzle check pattern Same as the BC-11eHR-Fine modeCarriage motion: 3 passPrinting nozzle: 8 nozzlesResolution: 360 dpiCarriage driving frequency: 5.00 kHzPhoto print mode can be used to obtain high level gradation print quality when using thePhoto BJ cartridge. These cartridges contain low density ink which achieves a richgradation and reduced graininess by printing several times over the same dot.The printer driver divides the pixel data into a maximum of 4-values (not printed, print 1dot, print 2 dots and print 3 dots) enabling each pixel to be printed in up to 4 gradations.The printer therefore makes three passes using a maximum of 150% more ink than usual.This Photo cartridge adopts drop modulation, decreasing granularity of the low densityparts by efficiently ejecting large and small ink droplets.Head IDCarriage ribbon cable contact part pin No. / Signal nameHead 11/ID0 12/ID1 13/HCONTBC-10 L L HBC-11e H L LBC-12e H H LNo head installation error H H -----The printer cannot detect ink cartridge type, and the ink cartridges suitable for the BC-11eand BC-12e heads are not incompatible, so that the following installation problem mayoccur. Regardless if the BCI-12 Bk/Color low density photo ink cartridge is installed in theBC-11e by mistake, the printer recognizes it as the usual BC-11e color cartridge, resultingin low density imaging. Likewise, if the BCI-11 Bk/Color cartridge is installed in the BC-12e head, the opposite occurs and high density image printing takes place.